Average First Frost Dates for South Dakota

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First Frost Dates were calculated using daily climate data from the period between 1991-2020.

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List of Average First Frost Dates for Locations in South Dakota

LocationAverage First Frost Dates
AberdeenSep. 21 - Sep. 30
Belle FourcheSep. 21 - Sep. 30
Box ElderOct. 1 - Oct. 10
BrandonOct. 1 - Oct. 10
BrookingsSep. 21 - Sep. 30
HarrisburgOct. 1 - Oct. 10
HuronOct. 1 - Oct. 10
MadisonOct. 1 - Oct. 10
MitchellOct. 1 - Oct. 10
PierreOct. 1 - Oct. 10
Rapid CityOct. 1 - Oct. 10
Rapid ValleySep. 21 - Sep. 30
Sioux FallsOct. 1 - Oct. 10
SpearfishOct. 1 - Oct. 10
SturgisSep. 21 - Sep. 30
TeaOct. 1 - Oct. 10
VermillionOct. 1 - Oct. 10
WatertownSep. 21 - Sep. 30
YanktonOct. 1 - Oct. 10
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